<template>
    <div class="cart">
      <Header></Header>
      <div class="cart_info">
        <div class="cart_title">
          <span class="text">我的购物车</span>
          <span class="total">共4门课程</span>
        </div>
        <div class="cart_table">
          <div class="cart_head_row">
            <span class="doing_row"></span>
            <span class="course_row">课程</span>
            <span class="expire_row">有效期</span>
            <span class="price_row">单价</span>
            <span class="do_more">操作</span>
          </div>
          <div class="cart_course_list">
            <CartItem v-for="(data,index) in course_data" :key="data.id" :data='data' @change_select='totalPrice' @del_course='del_cart(index)'></CartItem>
          </div>
          <div class="cart_footer_row">
            <span class="cart_select"><label> <el-checkbox v-model="checked"></el-checkbox><span>全选</span></label></span>
            <span class="cart_delete"><i class="el-icon-delete"></i> <span>删除</span></span>
            <router-link to="/order"><span class="goto_pay">去结算</span></router-link>
            <span class="cart_total">总计：¥{{total_price.toFixed(2)}}</span>
          </div>
        </div>
      </div>
      <Footer></Footer>
    </div>
</template>

<script>
import Header from "./common/Header"
import Footer from "./common/Footer"
import CartItem from "./common/CartItem"
export default {
    name: "Cart",
    data(){
      return {
        checked: false,
        course_data:[],
        total_price:0,
      }
    },
    methods:{
        verfiy_log(){
          if(!this.$settings.checkUserLogin(this)){
            this.$router.push('/login')
          }
        },
        get_course(){
            let token = localStorage.getItem('token');
            if(!token){
            token = sessionStorage.getItem('token');
            };
            if(token){
                this.$axios.get(`${this.$settings.Host}/cart/`,{headers: {'Authorization':'jwt '+token}})
                .then(res=>{
                  this.course_data=res.data;
                  this.totalPrice()
                })
                .catch(error=>{})
            }else{
                this.$router.push('/login')
            }
        },
        totalPrice(){
          this.total_price = 0;
          this.course_data.forEach((v,k)=>{
            if(v.selected){this.total_price += parseFloat(v.real_price);}
          })
        },
        del_cart(key){
        // 从购物车中删除指定商品
        this.course_data.splice(key,1);
        // 删除商品课程以后，还要重新计算新的总价
        this.totalPrice();
      },
    },
    created(){
        this.get_course()

    },

    components:{
      Header,
      Footer,
      CartItem,
    }
}
</script>

<style scoped>
.cart_info{
  width: 1200px;
  margin: 0 auto 50px;
}
.cart_title{
  margin: 25px 0;
}
.cart_title .text{
  font-size: 18px;
  color: #666;
}
.cart_title .total{
  font-size: 12px;
  color: #d0d0d0;
}
.cart_table{
  width: 1170px;
}
.cart_table .cart_head_row{
  background: #F7F7F7;
  width: 100%;
  height: 80px;
  line-height: 80px;
  padding-right: 30px;
}
.cart_table .cart_head_row::after{
  content: "";
  display: block;
  clear: both;
}
.cart_table .cart_head_row .doing_row,
.cart_table .cart_head_row .course_row,
.cart_table .cart_head_row .expire_row,
.cart_table .cart_head_row .price_row,
.cart_table .cart_head_row .do_more{
  padding-left: 10px;
  height: 80px;
  float: left;
}
.cart_table .cart_head_row .doing_row{
  width: 78px;
}
.cart_table .cart_head_row .course_row{
  width: 530px;
}
.cart_table .cart_head_row .expire_row{
  width: 188px;
}
.cart_table .cart_head_row .price_row{
  width: 162px;
}
.cart_table .cart_head_row .do_more{
  width: 162px;
}

.cart_footer_row{
  padding-left: 36px;
  background: #F7F7F7;
  width: 100%;
  height: 80px;
  line-height: 80px;
}
.cart_footer_row .cart_select span{
  margin-left: 14px;
  font-size: 18px;
  color: #666;
}
.cart_footer_row .cart_delete{
  margin-left: 58px;
}
.cart_delete .el-icon-delete{
  font-size: 18px;
}

.cart_delete span{
  margin-left: 15px;
  cursor: pointer;
  font-size: 18px;
  color: #666;
}
.cart_total{
  float: right;
  margin-right: 62px;
  font-size: 18px;
  color: #666;
}
.goto_pay{
  float: right;
  width: 159px;
  height: 80px;
  outline: none;
  border: none;
  background: #ffc210;
  font-size: 18px;
  color: #fff;
  text-align: center;
  cursor: pointer;
}
</style>

